[fedora-virt] Can't use network in guests

[Mark McLoughlin]

On Tue, 2009-07-28 at 12:58 +0200, Gianluca Sforna wrote:
> On Tue, Jul 28, 2009 at 12:29 PM, Mark McLoughlin<markmc at redhat.com> wrote:
> >
> > Can you use 'virsh edit' to add e.g.:
> >
> >    <interface type='bridge'>
> >      <mac address='54:52:00:49:73:9a'/>
> >      <source bridge='br0'/>
> >    </interface>
> 
> This leads to another traceback when starting the VM:

Did you file a bug with the first traceback?

> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/engine.py", line 493, in run_domain
>     vm.startup()
>   File "/usr/share/virt-manager/virtManager/domain.py", line 573, in startup
>     self.vm.create()
>   File "/usr/lib64/python2.6/site-packages/libvirt.py", line 287, in create
>     if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
> libvirtError: internal error Failed to add tap interface 'vnet%d' to
> bridge 'br0' : No such device

What exactly is the guest's configuration? Is 'vnet%d' mentioned
anywhere? What version of libvirt?

> > See also:
> >
> >  http://wiki.libvirt.org/page/Networking#Fedora.2FRHEL_Bridging
> >  https://fedoraproject.org/wiki/Reporting_virtualization_bugs#Networking
> 
> Thanks for the pointers, I found this suspicious message in virt-manager.log:
> 
> [Tue, 28 Jul 2009 12:54:16 virt-manager 3653] ERROR (proxies:400)
> Introspect error on
> :1.1:/org/freedesktop/Hal/devices/net_d2_eb_bc_ff_01_a7:
> dbus.exceptions.DBusException: No device with id
> /org/freedesktop/Hal/devices/net_d2_eb_bc_ff_01_a7
> [Tue, 28 Jul 2009 12:54:16 virt-manager 3653] DEBUG (proxies:403)
> Executing introspect queue due to error
> [Tue, 28 Jul 2009 12:54:16 virt-manager 3653] ERROR (connection:218)
> Exception in handler for D-Bus signal:
> Traceback (most recent call last):
>   File "/usr/lib/python2.6/site-packages/dbus/connection.py", line
> 214, in maybe_handle_message
>     self._handler(*args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/connection.py", line 170,
> in _net_phys_device_added
>     if objif.QueryCapability("net"):
>   File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 68, in __call__
>     return self._proxy_method(*args, **keywords)
>   File "/usr/lib/python2.6/site-packages/dbus/proxies.py", line 140, in __call__
>     **keywords)
>   File "/usr/lib/python2.6/site-packages/dbus/connection.py", line
> 630, in call_blocking
>     message, timeout)
> DBusException: org.freedesktop.Hal.NoSuchDevice: No device with id
> /org/freedesktop/Hal/devices/net_d2_eb_bc_ff_01_a7
> 
> still confused...

Odd, dbus telling us a device has added and then failing to find it.
Seen this one before Cole?

Cheers,
Mark.